The Dboys SCAR-H maintains many of the same features and controls as the M4/M16 series, so the transition for users is simple. In addition, the SCAR-H has many improvements over the M4 and the M16. The lower receiver is constructed from sturdy polymers and aluminum to reduce weight. The magazine release and selector switch are ambidextrous, and the bolt release is functional making it ideal for players who are already familiar with the M4 manipulation. By pulling back the charging handle, one gains access to the adjustable Hop Up mechanism. Not only is the stock retractable it is side folding and has an adjustable cheek rest.

An integrated and uninterrupted rail runs along the top of the receiver giving the user plenty of room to mount optics and night vision equipment. In addition, there is a rail on the underside of the hand guard and two removable rails for each side of the hand guard that enable the user to mount accessories like a flashlight or vertical grip. The model comes with removable, flip up sights that can be used with any scope accessory. The CQC variation is equipped with a short barrel and a QD silencer style flash hider. The package includes a small barrel extention.

The model uses a reinforced Version 2 Gearbox with High Strength Steel gears that run on 8mm Bushings. To reduce spring tension, the model utilizes a steel ball-bearing spring guide. The piston is polycarbonate to reduce weight but keep the stregth on the desirable level. The mini type battery is located into the stock, which can be accessed, as in the brand-name replicas, by removing the rubber butt pad, protected by metal pin. The model uses a SCAR-H spesific magazine that can accomodate 500 BBs.

The Special Operations Forces Combat Assault Rifle (SCAR) is a modular rifle made by FN Herstal (FNH) for the United States Special Operations Command (SOCOM) to satisfy the requirements of the SCAR competition. This family of rifles consist of two main types. The SCAR-L, for "light", is chambered in the 5.56x45mm NATO cartridge and the SCAR-H, for "heavy", fires 7.62x51mm NATO. Both are available in Long Barrel and Close Quarters Combat variants.